文章基本信息

标题：Time and Frequency Synchronization Scheme for IEEE802.15.3c OFDM System
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作者：Li-jun Ge ; Yue Li ; Jin Tao 等
期刊名称：Journal of Communications
印刷版ISSN：1796-2021
出版年度：2016
卷号：11
期号：2
页码：143-148
DOI：10.12720/jcm.11.2.143-148
语种：English
出版社：ACADEMY PUBLISHER
摘要：A timing and sampling frequency synchronization scheme, based on the preamble and the pilots, is given in this paper, for the 60GHz OFDM system specified in the IEEE802.15.3c standard. Based on the Gray complementary sequences, an anti-multipath separated sliding correlation detection (SSCD) algorithm is fist proposed, and the positions of the correlation peaks are averaged to increase the anti-noise capability of timing. The possible residual lag error is corrected and moved to the range of cyclic prefix by adopting its tolerance to timing error. Then, a method doing phase equalization combined with integer sampling deviation pre-correction (PE-ISDPC) is proposed for sampling frequency synchronization, also exploiting the cyclic prefix tolerance to the integer sample deviation to reduce the implementation complexity. Simulation shows that the system has a good time and frequency synchronization performance, and the overall scheme has a low complexity.
关键词：Ultra Wide Band ; OFDM ; synchronization ; timing ; carrier frequency offset ; sampling frequency offset